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Forest Service

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Missoula Fire Sciences Laboratory

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Sanding and preparing tree cookies

Collecting fuel samples to determine moisture content at the base of a Jeffrey pine tree immediately before the prescribed burn.

STIX project work

STIX project field work

Convection heat transfer requires flames to contact adjacent fuels. Discontinuous fuels (e.g. shrub and tree canopies) require flames to extend across gaps between fuel clusters. The vertical flame wall with its high sample rate heat flux sensors (shown) and thermocouples are used to describe flame turbulence and thus the flame position and duration. Diffusion flames are produced using buoyantly neutral ethylene fuel gas.

Assessing a fire-scarred lodgepole pine tree

Airborne Laboratory. Gas and particle measurement instruments and flight scientists on the U.S. Forest Service Region 4 Twin Otter aircraft.

Burning a masticated fuelbed in the burn chamber of the Missoula Fire Sciences Laboratory

An instrumented fuel bed composed of laser-cut cardboard. These uniform fuel beds are burned in the wind tunnel to determine rate of spread and other physical characteristics of fire.

An instrumented fuel bed composed of laser-cut cardboard. These uniform fuel beds are burned in the wind tunnel to determine rate of spread and other physical characteristics of fire.

Measuring water potential

Measuring resin flow

clockwise from upper left: Dan Jimenez assists with a prescribed burn in Georgia pine forests.; A prescribed fire is lit from the road in the burn unit. Elliot Conrad also assists with the burns.

Prescribed burn, Mink Peak, Lolo National Forest

View from a treated stand

Prescribed burn, Mink Peak, Lolo National Forest

Fall colors and flame, prescribed burn, Mink Peak, Lolo National Forest

Prescribed burn, Mink Peak, Lolo National Forest

Bear marking on whitebark

Tendoy Mountains, MT

Vegetation identification, Moran Junction, WY

Inspecting a whitebark seedling in early morning snow.

Daylighting around a healthy whitebark pine; removing all tree competitors

Wooden crib (4'x4'x2') in burn chamber

Fall shades and new growth, Beaver Ridge, ID

Coyote Meadows, Sapphire Range, MT

Field gear at Coyote Meadows, Sapphire Range, MT

Looking over an old burn, Madison Range, MT

Last updated February 5, 2024

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Rocky Mountain Research Station Fire, Fuel and Smoke Science Program About FireLab

Missoula Fire Sciences Laboratory

5775 US Highway 10 W
Missoula, MT 59808-9361

406-329-4800 (voice)

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